Calorimetric results in man: Energy output in normal and overweight subjects

Irsigler, K; Veitl, V.; Sigmund, A.; Tschegg, E. K.; Kunz, K.

doi:10.1016/0026-0495(79)90151-3

Cited by 22 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Corrections for water temperature and pulmonary residual volume are the same, as is the need for subject cooperation. Irsigler et al (1979) and Garrow et al (1979) have devised a method that does not require the subject to immerse his head. The subject is immersed up to the neck, and the volume of the head and neck is determined by application of Boyle's law.…”

Section: Water Displacementmentioning

confidence: 99%

Human Body Composition

Forbes

1987

326

151

View full text Add to dashboard Cite

Section: Water Displacementmentioning

confidence: 99%

Human Body Composition

Forbes

1987

326

151

View full text Add to dashboard Cite

“…Energy balance measurements are well suited to provide such information. However, the number of such measurements lasting 24 h or more is small (Apfelbaum et al 1971 ; Agricultural Research Council/Medical Research Council Committees, 1974;Dauncey, 1979Dauncey, ,1980Irsigler et al 1979;Webb, 1981 ; Ravussin et al 1982;Schutz et al 1982). In some of these studies intake of ME was not measured but calculated, the calorimetric rooms used for measurements were small, having a volume of only 5 m3, and room temperatures were sometimes high (see Table 7, p. 440).…”

mentioning

confidence: 99%

Human energy metabolism below, near and above energy equilibrium

Vogt

Niessen

et al. 1984

Br J Nutr

View full text Add to dashboard Cite

I. Complete 24 h energy and nitrogen balances were measured for fifteen subjects at three levels of energy intake and for two other subjects at two levels of intake.2. At each level, the fifteen subjects ate diets consisting of fifteen to twenty separate foods for 7 or 8 d. Faeces and urine were collected for the final 4 d. Respiratory gas exchange was measured during the final 72 h while the subjects stayed in an 11 ms open-circuit respiration chamber, and simulated office or light household work. The energy balance of the other two subjects was determined initially in a similar way when they consumed a diet which was sufficient for energy equilibrium. Subsequently, the measurements were repeated twice at the same high level of metabolizable energy (ME) intake after 4 and 18 d on that diet.3. Neither energy nor N digestibilities were significantly affected by intake level or subject. Due to relatively small urinary energy losses the ME content of the gross energy increased slightly at the higher intake.4. Respiratory quotient increased with intake level from 0.78 to 0.87. 5. The efficiencies of utilization of ME were approximately 1 .O for maintenance (from the low to the intermediate intake level) and decreased to about 0.9 for maintenance and energy deposition (from the intermediate to the high intake level).6. Estimates of daily ME requirements at energy equilibrium were 149 (SD 13) kJ ME/kg body-weight, 432 (SD 33) kJ ME/kg b o d y -~e i g h t~' '~ and 204 (SD 22) kJ/kg lean body mass. The former two values were negatively correlated with percentage body fat although not significantly so.7. ME utilization and heat production of the other two subjects were nearly equal after 6 and 20 d on a diet supplying 1.5-1.7 times the ME needed for energy equilibrium.Information on the amount of metabolizable energy (ME) required at energy equilibrium of individuals performing office or light household work is scarce. The same is true for our knowledge of the efficiency of utilization of ME when ingested in amounts smaller or greater than needed for energy equilibrium. Energy balance measurements are well suited to provide such information. However, the number of such measurements lasting 24 h or more is small (Apfelbaum et al. 1971 ;

show abstract

“…The activity and stress factors were not developed by the authors of the equations, but have been suggested by researchers investigating total energy expenditure in different states of illness or exercise. Table 4 lists activity factors derived from the FAO/WHO/UNU Expert Consultation Report and from a variety of other studies, mostly in healthy people 13,28–33 . Physical activity levels (PALs) are obtained by measuring total energy expenditure in free‐living individuals and dividing by their BMR.…”

Section: Equations For Estimating Energy Requirementsmentioning

confidence: 99%

Back to basics: Estimating energy requirements for adult hospital patients

Ferrie

Ward

2007

Nutrition & Dietetics

View full text Add to dashboard Cite

Predictive equations are a quick and non‐invasive way to estimate a patient's energy requirements, and can be a useful tool when used appropriately. However, as with any tool, the skill and experience of the user will affect the quality of the result. This paper looks at the origins and limitations of some of the more commonly used equations. Considerations in their use and interpretation, such as the use of injury and activity factors, adjusting weight and non‐protein calories, are also discussed.

show abstract

Calorimetric results in man: Energy output in normal and overweight subjects

Cited by 22 publications

References 12 publications

Human Body Composition

Human Body Composition

Human energy metabolism below, near and above energy equilibrium

Back to basics: Estimating energy requirements for adult hospital patients

Contact Info

Product

Resources

About